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Open AccessArticle

Effects of a Novel Adsorbent on Membrane Fouling by Natural Organic Matter in Drinking Water Treatment

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Aquateam COWI, P. O. Box 6412, 0579 Oslo, Norway
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MicroHAOPs Inc., 4000 Mason Road, Seattle, WA 98195, USA
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Ullensaker Municipality, Furusethgt. 12, 2050 Jessheim, Norway
*
Authors to whom correspondence should be addressed.
Membranes 2019, 9(11), 151; https://doi.org/10.3390/membranes9110151
Received: 21 October 2019 / Revised: 1 November 2019 / Accepted: 4 November 2019 / Published: 12 November 2019
(This article belongs to the Special Issue EWM 2019: Membranes for a Sustainable Future)
Irreversible fouling of water filtration membranes reduces filter longevity and results in higher costs associated with membrane maintenance and premature replacement. The search for effective pretreatment methods to remove foulants that tend to irreversibly foul membranes is ongoing. In this study, a novel adsorbent (Heated Aluminum Oxide Particles (HAOPs)) was deployed in a fully automated pilot system to remove natural organic matter (NOM) from the surface water source used at the UniVann water treatment plant (WTP) in Ullensaker County, Norway. The pilot plant treatment process consists of passing the water through a thin layer of HAOPs that has been deposited on a mesh support. The HAOPs layer acts as an active packed bed which removes NOM from the water. Fluxes around 120 L/m2/h (LMH) at transmembrane pressure (TMP) below 10.7 psi (0.7 bar) were achieved over production cycles excessing 12 h. Treatment achieved always >85% colour removal and effluent colour <5 mg Pt/L (the target of treatment), and always <0.01 NTU turbidity and non-detectable suspended solids in the permeate. The HAOPs mixture after saturated with NOM is easy to remove by disruption of the HAOPs by rinsing the mesh surface, and the sludge is easily dewatered to higher of dry solids content. View Full-Text
Keywords: adsorption; HAOPs; NOM; MF anti-fouling; membrane filtration adsorption; HAOPs; NOM; MF anti-fouling; membrane filtration
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Manamperuma, L.D.; Vik, E.A.; Benjamin, M.; Cai, Z.; Skjefstad, J. Effects of a Novel Adsorbent on Membrane Fouling by Natural Organic Matter in Drinking Water Treatment. Membranes 2019, 9, 151.

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